Disk wheel



Aug. 3, 1926. 11,594,449

\ H. J. BRADT.

,DISK WHEEL Filed Dec. 5. 1925 2 Sheets-Sheet 1 H J.- BRADT Aug. 3 1926.

DISK WHEEL ilednec. 5, 1923 2 Sheets-Sheet 2 "Gummy Patented Aug. 3,1926.

UNI-ran s eras 34 39149 3- 3.3433 Q DE 3 MIQEHGAN- nrs WHEEL.

Application filed Deeember 5, 1923 Serial No. 678,625.

This invention relates to disk wheels and has special reference, to thatclass ofdouble disk vehicle wheels provided with demountable tiresupporting rims.

My invention airns to provide a double disk wheel body wherein thecenter hub supporting portionioi" the body is firmly eonnectedto a huband the. disks of the body to provide a r igid body portion-at the hub;i

The. disks are formed with annular inwardly lged portionsso that thebodies of the disirs intersect the plane of rotation and peripheries ofsaiddisks are formed withfi anges adapted for supporting a deet red-erini. The disk flanges have a configuration hich necessitates "forcing aa r ewa rim inw dly t e a g and"p rovision1s made to, prevent circumferen tial e ijp ing' of the den iountable rim on the s n s,

fhfly inventi n 'further aims to provide a double disk wheel wherein thedisks have rim supporting flanges with the'rperipheral portions of thedisks articulated by rim holding ilasteners which be easily and quicklyp acedin position to "prevent an outward displacement of the thesupporting rim during rotation oi; the wheel.

' My invention further aims to provide a disk vehicle wheel p ossessingthe requisite degree and at the saine'tiine affording a degreeofresiliency which will son-- tributetosafe and easy riding of a vehiclebody supported by wheels in aceordance with thi in e e- My inventionfurther aims to provide a wheel body composed of inner and outer diskshaving peripheral flanges with said fiangesdisposed softhat the flangeof the inner disk may be somewhat contracted or drawn intoa rim, and"the flange of the outer disk crowded onto the inner disk so that the theouter disk is somewhat spread and adapted to cooperate with the flange,of th e" innei disk in clamping a riin or otheristi'iic'tureon saiddisks; doiible llisk wlieel willfbe liereiiiai ter specificallydescribed and then claimed, and referenee new be had to the drawings,

q mie ask e n,- a w dene with thisinvention-j e 1' isan elevation oftheouter side i Fig. 2 is a vertical cross sectional view of the diskwheel; a

Fig. 3 is a horizontal sectional. view of a portion of the disk wheelshowing a split r m; I t

1 is alongitudinal sectional view 01 a portion of the split rim;

7 Fig. 5 is a perspeetive VlBW of the same;

Fig. 6 is a cross sectional view taken on theline VI- VI of Fig. 3;

Fig. is a plan of a portion of a disk flange;

Fig; 8 is a perspective View of the same; Fig. Sis-an enlarged elevationof a rim fastener 10 is a detail sectional view of a portio'no'f a rimand double disk body showing the flanges of the disks clamping the rimon the disk body, and I Fig. 11 is a similar view showing the re lation'between therim and disk flanges.

The wheel bodyis composedof an outer disk 1 and an inner disk 2 andthese disks have central portions disposed in parallelism and providedwith oo-axial flanged openings with the annular flanges 23 and 1;confronting each other so that said flanges may bear upon a hub 5provided with a brake drum 6, a fired inner plate. or head 7 and adeengaging the outer iaoeot the inner disk 2 and a flange 11 engagingthe inner faceot theouter disk 1. The filler member 9 spaces the disks 1and 2 apart and is adapted to hold said disks against the heads 7 and 8when said heads are connected by a plurality of equipped bolts 12extending through said heads", the disks 1 and 2, the filler member 9and the brake drum 6.

In addition to the filler member 9 bracing the inner wall of the outer.disk 1, said filler member bears on theflange 3 otthe outer disklandbraces said flange by reason or the bolts 12 extending through-thefillermemher. It is prefer-ableto have the periphery otthe fillenmelnber 9meet the inner face of the outer disk 1 adjacentthe peripheral edge's'of the head 8 and inturn theiou-ter Th inner and-o ter disks. are pesided with annular inwardly bulged portions 13 which bring the disksinto closer proximity to each other and imparts a compound curve, incross section, to said disks, so that said disks will intersect parallelplanes of wheel rotation. With these disks bulged or dished a degree ofresiliency is imparted to the same and clearance provided at the outerdisk 1 for a pneumatic tire filling tube or connection 1 1 which isadapted to extend through an opening 15 in the outer disk.

The periphery of the inner disk 2 terminates in an annular flange 16 andsaid flange is not exactly disposed at a right angle to the plane of thedisk2, but is slightly at an angle to said disk so that the free edge ofthe flange 16 will have a diameter slightly greater than where theflange joins the disk. This is in order that a demountable rim 17 may beplaced on the flange 16 and cause compression or flexure of the flange16 as the rim 17 is forcedinwardly with the binding action between therim 17 and the flange 16 preventing excessive inward movement anddisplacement of the rim 17 relative to the double disk body of thewheel. This is best shown in Figs. 10 and 11 where the flange 16 has itsangularity exaggerated and if the flange is not retracted as fully asshown in Fig. 2, then the rim 17 will contact with the edge of theflange 16 and obtain a firm purchase thereon. In drawing the inner diskinto the rim or forcing the rim on to the flange 16, it may happen thatthe edges of the flange 16 will protrude from the inner side of the rimand the rim stick and seat on the flange 16 some place between the outeredges of the flange and the body of the disk 13. 1

The outer disk 1 also has a peripheral flange 18 similar in manyrespects to the flange 16 but maintained in spaced relation to theflange 16 except at depressed portions 19 of said flange whereextensions 20 abut the disk 2 contiguous to the flange 16 thereof. Theextensions 20 of the flange 18 may ride up on to the curved portion othe flange 16, at its juncturewith the disk 13 and in so doing tend todistend the flange 18 whereby it may cooperate with the flange 16 inclamping and supporting the rim 17. The rim 17 is of the split typehaving its split ends 21 transversely slitted, as at 22 and inwardlypressed to form seats 23 for a connecting bar 24 flush with the outerwall of the rim l7, and fixed to one end of the rim by rivets 25 andattached to the opposite end of the rim by a screw bolt 26. This mannerof connecting the split ends of the rim permitsof said rim being easilymounted in an inflated pneumatic tire or outer casing 27 which has thefilling tube or connection 24 extending through an opening '28 of therim l7 and a notch or slot 29 in the flange 18. This flange also p ovied with notchorrecess movement of the demountable rim 17 on the diskflanges 16 and 18, even though these flanges do not frictionally holdthe demountable rim against inward movement the bead 31 will do so. Thehead 31 is adapted to be engaged by fasteners comprising bead and diskengaging clips33 provided with lips 3 1 extending between the bead 31and the outer disk 1 to extend into the depressions 19 of the flange 18.The clips 33v may be held in position by nut equipped bolts 35non-rotatably held by the disk- 2 and extending through openings 36 ofthe outer disk 1 and through the clips 33 with nuts 27 on the outer endsof said bolts. After the rim is placed on the disks the fasteners may beemployed for drawing the flange '16 into the rim, causing distention ofthe flange 18, and firm anchoring of the rim on the disk bodyof thewheel.

It is thought that the manner of constructing the wheel and theadvantages gained by such construction will be apparent without furtherdescription, and while in the drawings there is illustrated av preferredembodiment of my invention, it is to be understood that the structuralelements are susceptible to suchvariations and modifications as-fallwithin the scope of the appended claims.

What I- claim is 1. In a disk wheel, a" double disk body composed ofinner and outer disks, peripheral flanges carried by said inner andouter disks and extending in the same direction relative to said disks,a demountable rim seated on the flanges of said disks, said flangesbeing in proximity to each other and having a combined widthapproximatelythe width of said rim, and rim fasteners carried by saidinner and outer disks adjacent the flanges thereof. 7

2. A disk wheel as called for in claim 1, wherein said demountable rimhas an annular bead adapted to abut the outer disk at the base of itsflange which disk has its flange provided with depressed portions toreceive portions of said rim fasteners.

3. A disk wheelas called for in claim 1, I

wherein said rim fasteners include clips adapted to engage between saidrim and said outer disk and extend onto the flange of the outer disk. 1I I i 4. In a disk Wheel, a double .disk body having peripheral flangeswith the flange of one of said disks provided with a depressed portion,and a rim having anjpternal abutment thereon, the depressed portion ofsaid disk engaging the periphery of the other of said disks, wherebyoutward pressure of the depressed flange is exerted against the innerwall of said rim, said depressed portion also serving to receive saidabutment and prevent circumferential creeping of said rim on said disks.

5.- In a dish wheel, a rim, inner and outer disks having peripheralflanges adapted to clamp the inner wall of the rim, the flange of theinner disk being retracted when the rim is placed thereon, the flange ofthe outer disk being distended by abutting the inner disk, and means forconnecting said disks to retain the rim on the flanges of said disks.

6. A disk wheel comprising a rim, inner and outer disks, and flanges onsaid disks engaging said rim, one of said flanges being distended byengagement with the other flange.

7. In a disk wheel, a rim, inner and outer disks, flanges on said disks,one of said flanges adapted to be retracted and the other flangedistended with both of said flanges cooperating in retaining said rim onsaid flanges, and means connecting said disks.

8. In a disk wheel, a rim, an outer disk therein, an inner disk adaptedto be shifted towards said outer disk and caused to clamp said rim byportions of the outer disk being distended against said rim, and meansfor clamping said disks together with the rim thereon.

9. In a disk wheel, a rim, inner and outer disks having peripheralflanges both extending in the same direction and affording a seat forsaid rim, and extensions of the flange of said outer disk abutting theperiphery of said inner disk and spacing the peripheral portions of saiddisks apart.

In testimony whereof I aiflX my signature.

HAROLD J. BRADT.

